Cannelured Brass. Use it or Lose it?

[RydForLyf]

As already noted above, the cannelure is used for identification, but something to check for and not be confused about is stepped brass, mainly with 9mm the step is on the inside .These will cause problems, with reloading and of greater concern is case separation in the gun leaving a ring of brass in your chamber. I would throw away all stepped brass that you come across.

Welcome to the forum.

[MT Gianni]

PM me if you are just going to toss them.

[higgins]

I've reloaded a lot of .38 spl. wadcutter brass over the years, some of it over 20 times with moderate loads. Closest I've come to a split within the cannelure is a tiny pinhole in one of the cannelure indentions. I've never had a circular crack around the case at a cannellure.

[kevin c]

I use all brands of cannelured 9mm cases except Aguila, where the knurling is more like a groove and seems to go deep into the brass, and my long 147's sized to .357 seem to have the heel right under the groove. Many loaded cases had the groove widen and the edges expand outward more than the rest of the case wall. Many wouldn't chamber, binding at the expanded cannelure, probably a good thing as I have my doubts about case integrity on firing. Unknurled Aguila cases were fine; only the cannelured cases gave me fits.

[RydForLyf]

I use all brands of cannelured 9mm cases except Aguila, where the knurling is more like a groove and seems to go deep into the brass, and my long 147's sized to .357 seem to have the heel right under the groove. Many loaded cases had the groove widen and the edges expand outward more than the rest of the case wall. Many wouldn't chamber, binding at the expanded cannelure, probably a good thing as I have my doubts about case integrity on firing. Unknurled Aguila cases were fine; only the cannelured cases gave me fits.

Interesting. I’m hoping to do some ransom rest testing to validate my hypothesis, but just haven’t been able to get that done yet.

[ioon44]

I never have had a problem using cannelured brass in 9 mm or any other caliber and I shoot a lot.

[fredj338]

Cannelure brass is fine, it blows out on firing. What you want to avoid is brass with an internal step, bad juju.

[RydForLyf]

Cannelure brass is fine, it blows out on firing. What you want to avoid is brass with an internal step, bad juju.

Yep, those get tossed.

[jsizemore]

I shoot bevel base bullets all the time.